Title :
THz imaging of inexpensive glow discharge detector (GDD) pixel
Author :
Kopeika, N.S. ; Abramovich, A. ; Joseph, H. ; Akram, A. ; Yadid-Pecht, O. ; Belenky, A. ; Lineykin, S.
Author_Institution :
Dept. of Electro-Opt. Eng., Ben Gurion Univ. of the Negev, Beer-Sheva, Israel
Abstract :
A new kind of 8×8 focal plane array (FPA) based on glow discharge detector (GDD) elements was constructed and tested experimentally. First THz images of this FPA are presented. The data acquisition of this system is performed with a special VLSI board designed for this system. Switching mode is necessary in order to save energy and video rate operation. Recent investigations proved that it is possible to overcome the timing limitations. GDD stabilization time of less than 1 msec was achieved. Moreover, It was shown that heterodyne detection yielded 40 times more sensitivity than the direct detection used today.
Keywords :
VLSI; data acquisition; focal planes; glow discharges; heterodyne detection; terahertz wave imaging; FPA; GDD elements; GDD stabilization; THz Imaging; VLSI board; data acquisition; focal plane array; glow discharge detector; heterodyne detection; switching mode; video rate operation; Detectors; Glow discharges; Pixel; THz detector; THz imaging; focal plane array; plasma;
Conference_Titel :
Microwaves, Communications, Antennas and Electronics Systems, 2009. COMCAS 2009. IEEE International Conference on
Conference_Location :
Tel Aviv
Print_ISBN :
978-1-4244-3985-0
DOI :
10.1109/COMCAS.2009.5386034
